121321200122 has 8 divisors (see below), whose sum is σ = 181984718196. Its totient is φ = 60659627392.

The previous prime is 121321200109. The next prime is 121321200149. The reversal of 121321200122 is 221002123121.

It can be written as a sum of positive squares in 2 ways, for example, as 104160462121 + 17160738001 = 322739^2 + 130999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121321200122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318893 + ... + 586800.

Almost surely, 2^121321200122 is an apocalyptic number.

121321200122 is a deficient number, since it is larger than the sum of its proper divisors (60663518074).

121321200122 is an equidigital number, since it uses as much as digits as its factorization.

121321200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972672.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121321200122 its reverse (221002123121), we get a palindrome (342323323243).

The spelling of 121321200122 in words is "one hundred twenty-one billion, three hundred twenty-one million, two hundred thousand, one hundred twenty-two".